According to B52, how many kilograms (or pounds) can be stored within a Class T machinery room including the current charge of the refrigeration system?

The correct amount of refrigerant that can be stored in a Class T machinery room, including the current charge of the refrigeration system, is 136kg (300lbs). This guideline is based on safety and regulatory standards outlined in B52, which is crucial for ensuring proper handling and storage of refrigerants to prevent leaks and potential hazards.

Class T machinery rooms are designed for particular types of refrigerants and have specific requirements that limit the total charge to maintain safety and mitigate risks associated with high refrigerant quantities. Exceeding this limit could lead to safety violations, which is why adherence to the stated maximum quantity is essential for compliance with industry regulations.

This knowledge is vital for refrigeration operators, as it helps in planning and managing refrigeration systems without exceeding safe working limits, thereby ensuring operational safety and regulatory compliance.